Elevator



F. H. PRINCE.

ELEVATOR.

No. 335,239. Patented Feb. 2, 1886.

Wine/saved.-

UNITED STATES PATENT OFFICE.

FREDERICK H. PRINCE, OF CHICAGO, ILLINOIS.

ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 335,239. dated February2, 1886.

Application filed October 9, 1885.

To all whom it may concern.-

Be it known that I, FREDERICK H. PRINCE, a citizen of the United States,residing in Chicage, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Elevators, of which thefollowing is a specification.

This invention relates to the means whereby the engine-valve is operatedfrom the car or platform in that class of elevators in which a runninghold is maintained upon the valvecables; and its nature is disclosed inthe subjoined description and the accompanying drawings.

In the latter, Figure l is a side elevation of an elevator-car with itscableconnection to the valve-operating mechanism. Fig. 2 is a frontelevation of the same. Fig. 3 is a plan of the car.

In said drawings, A represents the ear or platform, and A a standard atthe side thereof. To this standard is attached a bracket, A'fland inthelatter is the bearing of the pivot B, to which is secured at one endthe operators lever B, and at the other end a piece forming the arms b.Each of these arms carries a sheave, C, and, together with the operatorslever, forms what might be termed a pivoted T-lever, the arms bconstituting the rocking arm or cross-piece, and the lever B the uprightof the T. Upon or supported from the floor of the car are two stationarysheaves, C C. Each of the valveeables D D (which may beintegral) extendsfrom the top 0 of the hoistway under sheaves C, thence over sheaves C,thence down to the bottom of v the hoistway, where the two cables aresecured to opposite sides of drum E by staples e or other device, whichwill prevent slipping on the drum. The cables may, if preferred,bepassed under sheaves E, and thence up to the drum, as illustrated,or beconducted to the latter at a distance from the elevator shaft or way.From the drum E motion is transmitted to the engine-valve in any usualway-as, for instance, by belt from the pulley E on the drum shaft E".

Serial No. 179,383. (No model.)

The operation of the device is as follows: If the operator desires tostart the car upward, he moves the lever B through its handle b, so thesheave C, over which the cable D runs, will be raised. This will drawupon that portion of the cable below the car, and consequently oscillatedrum E downward upon the side to which cable D is attached. To startdownward, the lever is moved to the opposite side, thereby raising thesheave C, over which cable D passes, and oscillating the drum E in theopposite direction. If the engine is to be reversed, the operator movesthe lever from one side to the other and past the center or normalposition, and to stop it he simply returns the lever to its center ornormal position. Themovement upward may be obtained from cable D, andthe downward from cable D, if that is more convenient. It will benoticed that each cable is made to yield to the other, as occasionrequires, through the lowering of one of the sheaves C at the same timeand to the same extent the other sheave C is raised; also, that thesheaves upon the car may be located outside of it, so the cables neednot pass through the floor.

I claim 1. The combinatiomwith the ear and valvecables, of the devicesfor keeping a running hold on and operating said cables, consisting ofthe movable sheaves mounted on a rocking arm, and the operators leverfor actuating said arm, and the stationary sheaves C, substantially asspecified.

2. The combination, with the valve-cables and car, of a pivoted T-lever,the sheaves mounted on the lever, and the stationary sheaves C, thelever and sheaves being mounted on the car, substantially as specified.

3. The combination, in an elevator, of lever B, pivot B, arms I), andsheaves C with cables D and D, substantially as specified.

FREDERICK H. PRINCE.

Witnesses:

H. M. MUNDAY, Enw. S. EvAIvrs.

